Filename: //usr/include/c++/10///experimental/numeric

// <experimental/numeric> -*- C++ -*- // Copyright (C) 2015-2020 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. /** @file experimental/numeric * This is a TS C++ Library header. * @ingroup libfund-ts */ // // N4336 Working Draft, C++ Extensions for Library Fundamentals, Version 2 // #ifndef _GLIBCXX_EXPERIMENTAL_NUMERIC #define _GLIBCXX_EXPERIMENTAL_NUMERIC 1 #pragma GCC system_header #if __cplusplus >= 201402L #include <numeric> #include <experimental/type_traits> namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION namespace experimental { inline namespace fundamentals_v2 { #define __cpp_lib_experimental_gcd_lcm 201411 /// Greatest common divisor template<typename _Mn, typename _Nn> constexpr common_type_t<_Mn, _Nn> gcd(_Mn __m, _Nn __n) noexcept { static_assert(is_integral_v<_Mn>, "std::experimental::gcd arguments must be integers"); static_assert(is_integral_v<_Nn>, "std::experimental::gcd arguments must be integers"); static_assert(_Mn(2) != _Mn(1), "std::experimental::gcd arguments must not be bool"); static_assert(_Nn(2) != _Nn(1), "std::experimental::gcd arguments must not be bool"); using _Up = make_unsigned_t<common_type_t<_Mn, _Nn>>; return std::__detail::__gcd(std::__detail::__absu<_Up>(__m), std::__detail::__absu<_Up>(__n)); } /// Least common multiple template<typename _Mn, typename _Nn> constexpr common_type_t<_Mn, _Nn> lcm(_Mn __m, _Nn __n) { static_assert(is_integral_v<_Mn>, "std::experimental::lcm arguments must be integers"); static_assert(is_integral_v<_Nn>, "std::experimental::lcm arguments must be integers"); static_assert(_Mn(2) != _Mn(1), "std::experimental::lcm arguments must not be bool"); static_assert(_Nn(2) != _Nn(1), "std::experimental::lcm arguments must not be bool"); using _Up = make_unsigned_t<common_type_t<_Mn, _Nn>>; return std::__detail::__lcm(std::__detail::__absu<_Up>(__m), std::__detail::__absu<_Up>(__n)); } } // namespace fundamentals_v2 } // namespace experimental _GLIBCXX_END_NAMESPACE_VERSION } // namespace std #endif // __cplusplus <= 201103L #endif // _GLIBCXX_EXPERIMENTAL_NUMERIC

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